baber/WOPTO huggingface dataset:
Patent GB-1527378-A (GB)
Title: Method and apparatus for the production of copies
IPC: H04N1/401
Filed: 1975-09-24
Abstract: 1527378 Facsimile system AGFA-GEVAERT AG 24 Sept 1975 [24 Sept 1974] 39177/75 Heading H4F Facsimile charge recording system of the type comprising a row of electrodes transverse to the direction of travel of a record carrier, wherein after each complete image has been recorded a test signal with a predetermined signal level is supplied to the recording system and either the resulting voltages applied to the individual recording electrodes, or the voltages derived by photoelectrically detecting the resulting density of the developed test line on the record carrier, are compared with a stored reference density nominal value signal and any deviations used to regulate the respective output amplifiers associated with the individual recording electrodes. The facsimile signal to be recorded is specifically derived by means of a flying spot scanner FS, the resulting video signal being processed VE and then distributed V to a number of storage capacitors S 1 -S n  corresponding to the number of electrodes 10 in the charge recording apparatus, the resulting stored image element signals being applied for approximately one line scanning period duration via individual output amplifiers A 1 -A n  to the electrodes 10. The charge image is developed E s  to produce copies K of the original Vo. In this embodiment a test line T with predetermined signal level is recorded after each image K and photoelectrically scanned by diode line D 1 -D n , and any deviations in the resulting diode outputs from a stored reference density signal used to modify the amplification of amplifiers A 1 -A n . Alternatively the test line signal at the output of amplifiers A 1 -A n  may be compared with the stored reference density signal.
Patent GB-1526736-A (GB)
Title: Method and device for oxidizing and purifying water
IPC: B01D19/00
Filed: 1975-09-26
Abstract: 1526736 Degassing water; dispersing gases in liquids P H ISTERI 26 Sept 1975 [27 Sept 1974 8 Aug 1975] 39440/75 Headings B1C B1F and B1M [Also in Division C1] Undried gases (e.g. CO 2 ) are removed from natural water and waste water and desired gases added by separating undesired gases by pressure strokes on the water, and/or vibration, after which oxygen or gas containing free oxygen is fed into the water to purify it. The vibration means may be pressure strokes, ultra-sound or mechanical. The device of the invention comprises a suction pipe and a supply pipe for water, a rotary propellor and gas feeding means. The device is characterised in that the suction pipe houses vibration means, and the supply pipe has a gas feeding means which comprises a dispersion means disposed centrally in the pipe and optionally annular dispersion means. The central dispersion means may be rotatable and may be cylindrical.
Patent GB-1320707-A (GB)
Title: Printing machines
IPC: B41F7/20
Filed: 1970-08-19
Abstract: 1320707 Printing apparatus RICOH KK 19 Aug 1970 [9 Sept 1969] 39826/70 Heading B6C In a rotary offset lithographic printing machine a damping roller 3 is biased into engagement with a printing cylinder 4 and cam means 50 are operable to periodically displace the roller away from the cylinder when the latter is rotated to prevent the roller from making contact with predetermined portions of the cylinder. A solenoid 33 operated locking means 29a, 30a, is arranged to be biased into a locking or unlocking position in response to the state of energization of a solenoid. When biased into the locking position the locking means latches the roller after it has been moved from the cylinder by the cam means, and when biased into the unlocking position the locking means are held by the biasing force of the biasing means 36 from moving to the unlocking position until the cam means again displaces the roller to reduce the force of the biasing means acting on the locking means and thereby allow the locking means to move to its unlocking position and the subsequent return of the roller into engagement with the master cylinder. The damping tank 6, Fig. 2, is removable from the machine as a unit.
Patent GB-924991-A (GB)
Title: Improvements in or relating to photographic exposure meters
IPC: G01J1/42
Filed: 1959-11-24
Abstract: 924,991. Calculating-apparatus. SANGAMO WESTON Ltd. Nov. 24, 1959 [May 4, 1959], No. 39870/59. Class 106 (1). [Also in Group XX] As shown, the calculator of an exposure meter comprises two rotatable discs 21, 22, an index plate 24 rotatable with disc 22 and a disc 23 rigidly secured to a hub 26, said hub being detachably secured to casing 10 of the meter by means of a stud 31 having an elongated cam-locking member 34 thereon adapted to engage with correspondingly-shaped cam surfaces 61 on the inner surface of the casing. Disc 23 carries a film-sensitivity scale 44, only one value of which is visible at a time through windows in the overlying discs, and a light value scale 43 against which the arrow 55 on disc 21 is set in accordance with the reading of the exposure meter. Suitable combinations of aperture values and exposure times are indicated by adjacent scales 52, 57 on discs 22, 21 and the exposure value is indicated in window 54, only one value of the exposure value scale carried by disc 22 being visible at a time. Disc 22 is retained in its set positions by means of a locking-pin 63 engaging in any of a series of holes 42a in plate 24, the pin being carried by a spring 66 and releasable by depressing an actuating arm 66a.
Patent GB-815569-A (GB)
Title: Improvements in silicon steel with improved magnetic anisotropy and method of makingthe same
IPC: C22C38/02
Filed: 1957-12-23
Abstract: Grain oriented silicon steel strip for use in transformers, motors and other electromagnetic apparatus is prepared by melting raw iron scrap containing the usual impurities such as P, S, Cr, Ni, Al, Cu and Mn and adding 1 to 4 per cent of Si.  To this melt sulphur is added, preferably in the form of a metallic sulphide such as manganese sulphide, to provide a sulphur content of 0.005 to 0.1 per cent.  After casting, the resulting ingot is hot rolled to a strip of, for example, 100 mils thickness which is then cold rolled, for example to 30 mils thickness.  The strip is then heat treated, cold rolled to the final thickness, decarburized by heating in wet air, for example to 800 DEG C. and annealed at 1100 DEG C. to grow secondary crystals of optimum size and having the desired orientation.
Patent GB-1141484-A (GB)
Title: Apparatus for providing a synchronized transmission by teleprinter
Inventor: CUVELIER JEAN-JACQUES
IPC: H04L27/26
Filed: 1966-09-07
Abstract: 1,141,484. Telegraphy. ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE CHARLEROI. 7 Sept., 1966 [7 Sept., 1965], No. 39962/66. Heading H1P. In a telegraph system in which each character is represented by a signal of a first frequency chosen from four, corresponding sets of 8 and 4 vibrating reed frequency detectors are provided. Band-pass filters, enabled alternately for one signal period by means synchronized with the receiver, pass each signal to the coils of the corresponding set of detectors so that one reed vibrates. For the duration of the next signal, the e.m.f. set up in the coils of that set due to the still-vibrating reed are passed to corresponding means which detect the limit of maximum amplitude and feed a teleprinter. Prior to reception of the next signal for that set of coils the reeds of that set are damped.
Patent GB-1171172-A (GB)
Title: Improvements in or relating to Hydrostatic High Pressure Material-Forming Apparatus
Inventor: MILNE ALISTAIR ROBERT
IPC: B08B3/02
Filed: 1966-10-07
Abstract: 1,171,172. Extruding; upsetting. VICKERS Ltd. 20 Dec., 1967 [7 Oct., 1966], No. 40076/66. Headings B3H and B3P. A hydrostatic high-pressure material forming apparatus, such as a tube bulging or flange upsetting apparatus, or more particularly a press for extrusion of a billet 23 through a die 4, comprises a forward-pressure chamber 5 containing a ram 7 and a back pressure chamber 6 containing a ram 8, the rams being actuated by intensifier pistons 9, 10 in chambers 18, 19, 20 supplied with pressure fluid by means 14, 22 which maintain constant back pressure and recover the work done in overcoming the back pressure. Chambers 18, 19 are supplied by a common hydraulic pump 14 through valves 15, 16. The interconnection of the chambers 18, 19 ensures the recovery of work done in overcoming the back pressure. A variabledelivery pump 22 connected to the chamber 20 is controlled to provide a constant pressure therein. In another embodiment, Fig. 2 (not shown), the chamber 20 is omitted, the chamber 18, is supplied by two pumps (27), (28) in parallel, and the back pressure intensifier chamber 19 is supplied by a variable-delivery swash-plate pump (29) whose delivery is capable of being reversed. This pump is driven by the same motor (30) as that driving one of the other pumps (28) and is controlled to maintain constant pressure in chamber 19 and to recover the work done in overcoming this back pressure.
Patent GB-1399765-A (GB)
Title: Coin operated assembly utilising a nonreusable frangible coin- simulating element
IPC: G07F1/06
Filed: 1972-08-29
Abstract: 1399765 Token freed mechanism WALTER KIDDE & CO Inc 29 Aug 1972 40082/72 Heading G4V An operating mechanism for a vending machine or the like comprises a slide 14 reciprocably mounted in an assembly for movement to an operative position, the slide being freed for such movement by the presence of a frangible token 18 transported therewith, and means 52 for engaging and fragmenting the token on movement of the slide. In the embodiment shown the assembly includes a guide track 12 which supports the token, carried between abutments 64 on the slide 14, at a first level during initial movement of the slide, the token then falling down inclined ramp 13 to a lower second level (Fig. 7, not shown). At this level the edge of the token, Fig. 11, engages a pin 44 on a spring-urged latching lever 34 to pivot a finger 36 of the lever out of the path of a shoulder on the slide and thus permit full movement of the slide to its operative position. During such movement the token is engaged by curved end portion 60 of fragmenting means 52, Fig. 9, the token being bent and then broken, the pieces falling into a receptacle (Fig. 10, not shown). The token (Figs. 2A, 2B, not shown) is preferably formed of a plastics material and has a medial score line (54) or row of perforations (56). A magnet 27 may be provided to prevent spurious metallic tokens from engaging the latching lever and a full stroke of the slide is ensured by a rack and pawl mechanism.
Patent GB-1430375-A (GB)
Title: Process for the manufacture of low-carbon ferritic steel with  a high chromium content
IPC: C22C38/18
Filed: 1973-08-28
Abstract: 1430375 Making ferritic stainless steel KLOCKNER-WERKE AG 28 Aug 1973 [15 Sept 1972] 40460/73 Heading C7D Low carbon ferritic stainless steel of composition 12 to 23% Cr and 0À01 to 0À08% C is prepared by oxidizing low phosphorus crude iron to form a low nitrogen mild steel in a bottom or side blowing converter, deslagging the steel melt, heating the deslagged melt whilst adding lime and heating agents (e.g. Si, Al, CaSi) to a temperature above 1700‹C and then alloying with ferrochrome without interruption of the oxygen flow so that the carbon content of the melt does not exceed 0À5% and subsequently supplying an inert gas (e.g. argon, nitrogen or mixture thereof) to the oxygen stream so that the carbon monoxide partial pressure does not exceed 76 Torr where a final carbon content of 0À01 to 0À02% is required. The preoxidizing and deslagging steps may be dispensed with by using preoxidized and slag free B.O.F. steel and the chromium containing slag present after the completion of the oxidation process may be reduced using carbon free reducing agents (e.g. FeSi, CaSi and Al) while blowing in argon or nitrogen or a mixture thereof. Alloying elements for correction of the final analysis (e.g. Si, Mn or Cr) may be added to the melt during or after the slag removal.
Patent GB-850144-A (GB)
Title: Improvements relating to sheet metal shears
IPC: B23D33/02
Filed: 1958-12-16
Abstract: 850,144. Shearing. HAEMMERLE A.G. Dec. 16, 1958 [Jan. 30, 1958], No. 40544/58. Class 83 (4). In a shears, the sheet 7 to be cut is supported by one or more pistons 9 in the path of movement of the blade 5, the top of the pistons being flush with the cutting-edge 8 of the fixed lower blade 3 and displaceable in the direction of movement of blade 5. The work is pressed against the table 2 by a device 6. With blade 5 close to its top position, pressure medium is fed beneath the pistons, through check and control valves (Fig. 3, not shown), by a pump or an auxiliary pump. Stops 24 bear on blade 3 when the pistons are raised. During the cutting stroke, pressure medium from beneath the pistons escapes through a release valve, and after the end of this stroke the control-valve is closed. Piston-and-cylinder units 26, equal in number to the lower units 9, may be provided for the blade 5 to press the work against the lower pistons 9.
Patent GB-994917-A (GB)
Title: Improvements in or relating to apparatus for detecting variations in the thickness of a moving filament, thread or the like
Inventor: HALLIDAY HERBERT DONALD
IPC: B65H63/06
Filed: 1962-10-26
Abstract: 994, 917. Photo-electric gauging. J. HALLIDAY & SONS Ltd. Jan. 27, 1964 [Oct. 26, 1962], No. 40544/62. Heading G1A. In apparatus for detecting variations in the thickness of a moving filament such as yarn or thread, the filament 1 is fed past a longitudinal slot which is illuminated by a lamp 9 so that the response of a photo-resistance 10 depends on the thickness, and, provided the variation from standard persists over a predetermined length of the filament, an indicaton is given and for a control is effected. As shown, a second photo-resistance 29 is illuminated by the lamp 9 through a second slot 30 which may be partially obscured by an adjustable member 31 in accordance with the standard thickness of the filament. The resistances 10, 29 are arrayed in a bridge circuit including a relay 70 of whichthe response is delayed by connecting one or more of a number of capacitors 42... 46 in accordance with the length of non-standard filament that is allowable. The energization of the relay 70 connects up one or other of two lamps 53, 55 and operates an electromagnet 47 which controls a cutter for the filament. An ammeter may be plugged into a jack 71 to indicate the actual current through the relay 70. A modification is described in which the slots are differently disposed in relation to the lamp 9.
Patent GB-970575-A (GB)
Title: Improvements in or relating to soaking pits
IPC: C21D9/70
Filed: 1962-10-26
Abstract: <PICT:0970575/C6-C7/1> <PICT:0970575/C6-C7/2> A soaking pit is heated by a radiant element in the form of a trough 10 of refractory material such as silicon carbide, mounted on stays 11 so that it extends along one side of the pit at a distance from the floor. Burners 12, 13 at the ends heat the trough 10 which has movable covers 14 so that the flow of combustion products may be controlled to heat the ingots 15 evenly.  Charging openings 7 have lids 8, and outlets 9 below each opening 7 at the bottom of pit wall remote from the trough 10 allow the escape of the combustion gases.  The outlets may be arranged in the pit floor below the trough, and a single trough may heat a row of ingots on either side.  A single burner may heat the trough.
Patent GB-846226-A (GB)
Title: Process for producing tertiary butylphenylamines
IPC: C07C209/68
Filed: 1958-12-18
Abstract: A process for producing tertiary butyl phenylamines comprises reacting isobutylene with a phenylamine in the liquid phase at a temperature within the range of from 150 to 300 DEG C. and in the presence of an activated, substantially neutral bleaching earth of the montmorillonite type.  Phenylamines specified for use as starting materials include aniline, toluidines and xylidines. Nuclearly butylated butylphenylamines are obtained in addition to N-butylated phenylamines when temperatures in the lower region of the specified range are employed and nuclearly substituted phenylamines almost exclusively with temperatures in the upper region.  The catalysts specified are obtained by treating clays of the montmorillonite type with acids and washing out the reaction products.  Examples are furnished.
Patent GB-1406632-A (GB)
Title: Distillation method and apparatus
IPC: B01D1/26
Filed: 1972-09-06
Abstract: 1406632 Multiple effect thin film evaporator AQUA-CHEM INC 6 Sept 1972 [4 Oct 1971] 41389/72 Heading B1B The disclosure is substantially the same as that of Specification 1406631 but the invention relates to an apparatus and process for thin film distillation e.g. of sea water in a multieffect evaporator in which successive effects 31-2, 31-3,.... 31-8, 31-9 are arranged in vertical columns and in which additional feed liquid is added from pipes 106 to each effect to the unevaporated liquid, from the previous effect so that the combined feed from perforated trays 104 forms and maintains a thin film on heat exchange tubes 31-2, 31-3 etc. Residual sea water from the bottom of the right hand column forms the feed for the top of the left hand column. Feed to pipes 106 feeding effects 1-4 contain acid, and feed to pipes 106 feeding effects 5-15 contains sodium polyphosphates.
Patent GB-1463526-A (GB)
Title: X-ray examination apparatus
IPC: A61B6/02
Filed: 1974-09-24
Abstract: 1463526 X-ray apparatus SIEMENS AG 24 Sept 1974 [24 Sept 1973] 41601/74 Heading H5R An X-ray apparatus comprises a base 1 on which is mounted a first support structure 2 which is vertically adjustable relative to the base 1 and a second support structure 4 which has opposed arms which respectively carry an X-ray tube 5 and an X-ray recording device 6, the second support structure 4 being rotatably mounted on the first support structure 2 so as to be rotatable about a horizontal axis 3 parallel to the recording device image plane, and a third support structure 12 mounted on the same arm as the recording device and carrying an elongated patient support 11 parallel to the image plane, the support 11 being rotatable about axes 30 and 10 and displaceable in two dimensions relative to structure 12. In Fig. 2 (not shown) the apparatus is rotated so that the patient support 11 is horizontal. The rod 24 is connected to the X-ray recording device or an image intensifier in such a way by rod (29) as to maintain the centre of the device on the path of the central beam of the X-ray tube. Fig. 3 (not shown) illustrates the mechanism for displacing the patient support 11 perpendicular to the plane of support 12 and also a means for releasably securing the support 11 to the member 13. Motors 46, 47 are used for displacing the patient support parallel to the plane of support 11, if necessary during exposure. Fig. 4 (not shown) illustrates a servomechanism for resolving the movement of rod 24 as required when displacement and rotation of the patient support relative to the X-ray source takes place.
Patent GB-870350-A (GB)
Title: A method of and a machine for measuring tapers in workpieces
IPC: G01B5/24
Filed: 1958-12-23
Abstract: 870,350. Linear-dimension gauges. MAHR, C. W. Dec. 23, 1958, No. 41607/58. Class 106 (2). [Also in Group XX] In measuring the internal taper 8, Fig. 1, of a workpiece W, the latter is mounted on supports 6, 7, and adjusted until the lowest generatrix of the taper 8 is parallel with a reference plane on the machine bed, as determined by a feeler gauge, the workpiece W then being tilted about the required taper angle and the deviations from parallelism with the reference plane of the highest generatrix being determined by a feeler gauge. A base B has a bed 32 which slidably receives a table 31 carrying, through supports 2, 3, a sine bar 1. An intermediate plate 5, which is pivoted at 4 to the sine bar 1, has grooves 15 in which slide screws such as 13 on carriers 11 for the V-blocks 6, 7. The V-blocks may be adjusted transversely to the cone axis by means of thumb-screws 12. A stationary column C has a slide 17 to receive an arm 20 carrying caliper jaws 18. The lower limb of jaws 18 has a double-ended feeler 21 and the upper extremity 22 bears against a point 23 on the end of a feeler pin 24 of a feeler gauge 25. A spring, not shown, normally urges the caliper jaws clockwise so that extremity 22 contacts point 23 of pin 24 and overcomes the pressure of a spring 27, but it may be put out of operation by adjusting knob 29. In use, the workpiece is placed on the V-blocks 6, 7, and the latter adjusted in the direction of, and transverse to, the cone axis until the feeler gauge indicates that at both ends of the cone the lowest point has been reached. A micrometer screw 16 is then adjusted until the lowest generatrix of the cone is parallel to the machine bed. An end gauge 30, corresponding to the desired taper angle, is removed, knob 29 adjusted to bring the spring into operation so that the upper extremity of the double-headed feeler 21 is pressed against the upper generatrix of the cone and its parallelism with the bed determined by moving the table 31 along the bed 32.
Patent GB-1506588-A (GB)
Title: Gas turbine engine power plants for aircraft
IPC: F02K1/64
Filed: 1975-10-11
Abstract: 1506588 Aircraft thrust reversers ROLLS ROYCE Ltd 5 Oct 1976 [11 Oct 1975] 41751/75 Heading F2R [Also in Division B7] In a gas-turbine-engine thrust reverser fan air is directed over the outer surface of the engine cowl 30 by the Coanda effect, and the location at which this forwardly moving air impinges against the relatively rearwardly moving ambient air is controlled to avoid reingestion. As the aircraft speed decreases the stagnation area 34 of high pressure moves forwardly until a sensor 36 detects its presence. The sensor includes valves (not shown) which are spring-biased closed, and the detected high pressure is sufficient to overcome the springs and open the valves to permit compressed air from the compressor 38 to escape radially from the cowl via a conduit and pressure adjuster 42. In an alternative embodiment, Fig. 3, the sensor comprises two pitot tubes 44, 46 which receive ambient air flow and reversed air flow, respectively, and are connected to a fluidic device 50. A double-headed piston 52 is operated by the fluidic device to control a butterfly valve 56 located in a conduit 54 which feeds compressed air to a Coanda-effect producing nozzle 22a. The fluidic devices of two similar engines may be connected (Fig. 4, not shown) to obviate asymmetric thrust reversal in the event of one of the engine thrust reversers malfunctioning.
Patent GB-1014660-A (GB)
Title: Two-component diazotype photoprinting material
IPC: G03C1/58
Filed: 1962-11-05
Abstract: Basic aryl amides of brominated 3,5-dihydroxy benzoic acid having the formula <FORM:1014660/C2/1> where R5 and R6 are C1-3 alkyl or complete a 5-or 6-membered heterocyclic ring and R7 is H, Cl or CH3, may be prepared (1) acetylating 3,5 - dihydroxy - 4 - bromo - benzoic acid at the hydroxyl groups, converting the resulting diester to the acid chloride with thionyl chloride, and reacting the product with an amino-(dialkylamino)-benzene in an inert organic solvent. The acetylated hydroxyl groups are liberated by saponification with dilute hydrochloric acid. (2) 3,5 - dihydroxy - 4 - bromo - benzoic acid is condensed in a solvent in the presence of phosphorus chlorides with an amino-(dialkylamino)-benzene.  The compounds are used as couplers in photographic diazotype processes (see Division G2) and in examples compounds of the above formula are used wherein R5 and R6 are both methyl, ethyl or propyl or together form a morpholine ring while R7 is hydrogen and wherein R5 and R6 are both ethyl while R7 is methyl or chlorine.